Article: Japanese Inventor Develops Seat Belt Retractor

ALEXANDRIA, Va., April 22 -- Koji Hiramatsu of Shiga-ken, Japan, has developed a seat belt retractor.

According to the U.S. Patent & Trademark Office: "A seat belt retractor includes: a spool for winding a seat belt; a lock mechanism having a locking member for rotation with the spool in a normal state and for stop-rotation in a seat belt withdrawal direction in an emergency state; a torsion bar disposed between the spool and the locking member for absorbing energy of a passenger when the spool rotates in the seat belt withdrawal direction relative to the locking member in the emergency state; a stopper screwed in a shaft of the locking member to be movable in an axial direction along ...

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